Aqueous carrier systems for water-insoluble materials

A - Human Necessities – 61 – K

Patent

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Details

A61K 8/55 (2006.01) A61K 8/44 (2006.01) A61K 8/81 (2006.01) A61K 8/86 (2006.01) A61Q 1/10 (2006.01) A61Q 5/04 (2006.01) A61Q 5/06 (2006.01) A61Q 5/10 (2006.01) A61Q 5/12 (2006.01) A61Q 19/00 (2006.01)

Patent

CA 2293797

A composition containing at least one organic phospholipid capable of forming bilayers in aqueous solution; at least one amphoteric surfactant present in an amount by weight equal to or greater than the amount of the phospholipid; and at least one nonionic surfactant present in an amount by weight equal to or greater than the amount of the phospholipid. The invention also relates to a delivery system for water-insoluble ingredients containing the above components, at least one water-insoluble ingredient, and an aqueous phase, wherein the organic phospholipid, amphoteric surfactant, and nonionic surfactant are present in a combined amount sufficient to allow the water-insoluble ingredient to be incorporated into the system. A method of treating keratinous substances is also disclosed.

L'invention concerne une composition renfermant au moins un phospholipide organique capable de former une membranes à deux couches dans une solution aqueuse; au moins un surfactant amphotère présent à raison d'une quantité en poids équivalente ou supérieure à la quantité de phospholipide; et au moins un tensio-actif non ionique présent à raison d'une quantité en poids équivalente ou supérieure que la quantité de phospholipide. L'invention concerne également un système véhicule d'ingrédients insolubles dans l'eau contenant les composants précités, au moins un ingrédient soluble dans l'eau, et une phase aqueuse, système dans lequel le phospholipide organique, le surfactant amphotère et le tensio-actif non ionique sont présents en dose combinée suffisante pour permettre à l'ingrédient insoluble dans l'eau d'être incorporé au système. L'invention concerne enfin un procédé de traitement de substances kératiniques.

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